Lobang Shangpin oxygen concentrator how to maintain?

The front humidification bottle position should be replaced with pure water once a day, the filter cotton needs to be cleaned once a week, and the filter cartridge should be changed once every six months and fully dried before use. Clean the body shell at least once a month, if the dust is inhaled, it will affect the effect of oxygen production, and even damage the machine. Please cut off the power supply before wiping, use a clean, soft and slightly damp cotton cloth when wiping, and be careful not to infiltrate the liquid into the chassis crevices.